"We sick of dying. We sick of fighting," said Bianca Austin, Breonna Taylor's aunt. "We're tired of it. We're sick of being tired."
Kenosha police shot and injured Blake this summer. Louisville police shot and killed Taylor back in March.
WARNING: Disturbing video -- Kenosha police shooting caught on video
The families of both Taylor and Blake, united by their pain and their passion for change, joined together in Chicago.
"I refuse to be second and third class," said Jacob Blake's father, Jacob Blake Sr. "We are going to stand up and we going to stand together."
The first event took place at the Rainbow PUSH headquarters.
Civil rights leader Rev. Jesse Jackson stood alongside the families with the support of elected leaders, vowing to get justice.
"We will fight for little Jake; we will fight for Breonna," Jackson said.
Both families are also demanding more transparency and changes to the grand jury process.
With exactly a month to the election, they say the best way to help them is to vote. At one point, Austin referenced President Trump's message to the "Proud Boys" during Tuesday's presidential debate.
"Trump told his kind to 'stand back and stand down' and my message for our culture is, you need to stand up and stand tall, and make your voices be heard because the time is now," Austin said.
RELATED: Breonna Taylor case announcement: Officer Brett Hankison indicted, not for her death
The Blake family also rallied dozens in Evanston Saturday afternoon while chanting and marching through the streets.
"We must cross the lines that have separated us long enough. Come together and join hands and become a mighty fist," Blake Sr. said. "We can become those fists that change those law that can make those two systems of justice different."
RELATED: Breonna Taylor decision energizes Kenosha activists demanding justice for Jacob Blake